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winegstreamer: Avoid passing a NULL buffer to wg_parser_push_data() in the case of a zero-length read. 

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2021-10-06 11:46:34 -05:00 committed by Alexandre Julliard
parent 59997c355f
commit 585acfa041
2 changed files with 9 additions and 3 deletions
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7
dlls/winegstreamer/media_source.c
View File

@ -613,9 +613,12 @@ static DWORD CALLBACK read_thread(void *arg)
{ {
struct media_source *source = arg; struct media_source *source = arg;
IMFByteStream *byte_stream = source->byte_stream; IMFByteStream *byte_stream = source->byte_stream;
size_t buffer_size = 0; size_t buffer_size = 4096;
uint64_t file_size; uint64_t file_size;
void *data = NULL; void *data;
if (!(data = malloc(buffer_size)))
return 0;
IMFByteStream_GetLength(byte_stream, &file_size); IMFByteStream_GetLength(byte_stream, &file_size);

5
dlls/winegstreamer/quartz_parser.c
View File

@ -786,9 +786,12 @@ static DWORD CALLBACK read_thread(void *arg)
{ {
struct parser *filter = arg; struct parser *filter = arg;
LONGLONG file_size, unused; LONGLONG file_size, unused;
size_t buffer_size = 0; size_t buffer_size = 4096;
void *data = NULL; void *data = NULL;
if (!(data = malloc(buffer_size)))
return 0;
IAsyncReader_Length(filter->reader, &file_size, &unused); IAsyncReader_Length(filter->reader, &file_size, &unused);
TRACE("Starting read thread for filter %p.\n", filter); TRACE("Starting read thread for filter %p.\n", filter);